Nuclear Energy
Physics: Cambridge International GCSE Supplement, topic 1.11.7
Nuclear Energy
Nuclear energy
- In a nuclear reactor, fission takes place when the nucleus of a uranium atom splits into smaller nuclei.
- This releases nuclear energy, which is converted into thermal energy.
- The fuel rods become very hot and transfer this thermal energy to a fluid in the heat exchanger.
- The fluid becomes steam and rotates a turbine.
- The turbine turns a generator, producing electrical energy.
Important!
- Not all reactors use the same design.
- Some use water, some graphite.
Advantages
- No greenhouse gas emission, so no contribution to global warming.
- Reliable, on-demand electricity.
Disadvantages
- Nuclear waste remains radioactive for a very long time.
- Nuclear waste must be stored safely for thousands of years.
Test yourself on Nuclear Energy
Which of the following equipment is NOT required in the production of nuclear power?
Converting Nuclear Energy to Electrical Energy